6-year-old children’s teeth loose need to observe whether it is permanent teeth or milk teeth, if it is permanent teeth, we should go to the hospital in time to observe whether there is the value of preservation, if it is milk teeth, can be extracted. 1. Children due to individual differences, so the time of tooth replacement is different, in most cases under the age of 6 years are milk teeth, more than 6 years old are permanent teeth, if the fall is loose milk teeth, generally do not have to worry about, because the milk teeth will be replaced later on, most of the replacement teeth will not be a problem, but if the permanent teeth need to take a long time to erupt, you need to maintain the gap. 2. On the other hand, if it is a permanent tooth that is loosened by the fall, you need to go to the hospital to observe whether there is any preservation value, and try your best to give preservation and fixation, and if the pulp has been exposed, you need to carry out pulpotomy and apical induction molding to ensure the normal development of the tooth’s root tip. During the period of tooth fracture, try not to eat hard food, and also need to eat as little as possible of raw and cold stimulating food.